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DivIDE Plus FeedbackFinally had a chance to try out the DivIDE Plus since I got a CF card working (thanks to Rich) I put on a load of TAP and Z80 files I had onto it (I…
... to ROM. I'll look up the details when I get ... main ResiDOS system has a table at $3180 containing 64 entries ... />
The first byte of each 12-byte entry will tell you ... />
The bank containing this table is: 8 (divIDE Plus, ZX ... -
Seeking alternatives to DATA statementsAnyone know of any memory saving alternatives to storing a list of numbers, other than using DATA statements or poking data into addresses?... Im ti…
... them... Since the REM byte codes are 2 chrs per ... byte, Im dumping them to ... 23635+256*PEEK 23636: LET J=1
3 LET BYTE= ... +(J*2))-816: IF BYTE=-255 THEN GO TO 5 ... br /> 4 POKE A+J,BYTE: LET J=J+1: ... RubyScript part will encode each byte to a 2-chr ... -
Japanese computers and consolesThere some really nice ones out there if you can find them on yahoo auctions japan or ebay,now i think parts and the annoyance of using the stepdown …
... 32 megabits / 8 bits per byte = 4 megabytes.
Its ... Geo games usually just denoted sprite overkill and not necessarily more ... . Bullet-hell games especially got up my nostrils. -
Japanese computers and consolesThere some really nice ones out there if you can find them on yahoo auctions japan or ebay,now i think parts and the annoyance of using the stepdown …
... 32 megabits / 8 bits per byte = 4 megabytes.
Its ... Geo games usually just denoted sprite overkill and not necessarily more ... . Bullet-hell games especially got up my nostrils.[/QUOTE]
up yer nostrils -
Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…
... a demo using a 52-byte array of the m/c ... letters and then jumble them up, so that I could easily ... FN t()=65536*PEEK 23674+256*PEEK 23673+PEEK 23672
Help! Reverse engineering a Spectrum game[deleted]
... screen
11 - A slow sprite routine, that is; to display ... size
12 - A fast sprite routine, that is; optimised for ... display pointer using an index table
Please remember to ... and a comment that sums up the current stage of development ...Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... = Sprite tpage0 VRAM, 256*256 ARGB4444/1555 pixels
; 0x00320000 - 0x0033FFFF = Sprite tpage1 VRAM, 256*256 ... /> RSTTAB equ 0x001F7800 ; 2K Raster table
PF0MAP equ 0x001F8000 ...Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... the line numbers. I loaded up a source project on Speculator ... each starting with a one BYTE character count. A blank line ... be empty just needing a BYTE each to represent the count ...
defs 256
stack equ $
How to Extract a Font from a Game?I remember it was possible to load/save your own fonts in ArtStudio on my Speccy. I also remember it was possible to loop the loaded block of a game …
... come with a High Score Table - even if there's no ... trying to squeeze every last byte out of a game then ... top and bottom Byte 0 - giving a saving of 256 bytes.
Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... dies just as the player sprite is about to fall from ... file and found the 17 BYTE difference as expected. Poking those ... re-write the game start-up code then jump to $0038 ...New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…
... files have a 27 BYTE header followed by an uncompressed ... example; if the last 256 BYTES of memory were ... 'part2' would reduce those 256 BYTES to 209 BYTES. Those ... rest of the memory up to the last section ... ; PART3: Z80 code to clean up memory used by PART2 (17 ...Genesis: dawn of a new day, new game from RetroWorks!It's been a long development, but finally we made it. We proudly present the latest game from RetroWorks, Genesis: dawn of a new day. [img]http://ww…
... in ZX ram (about 256 bytes minimal or 1kB ... trace game controll - left/right/up/down/fire)
256 bytes) can use autofire ... is from begin of IM2 table (255 bytes free). ... last 2 bytes of IM2 table = previous 255 bytes are ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... logical pieces. sp1 is the sprite related stuff. The memory allocation ... , int, long) and a grown up stdio (trying to finish it ... . SP1 and the ISR table eat up about 14K out of the ... see what you can come up with.[/QUOTE]Sounds good to ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... represented by a 4-byte update struct whereas in ... update struct by 1 byte if a move is ... from 2-byte tile codes to 1-byte. This would ... marginally larger than some data table. There are however, ... 5K sword, an extra sprite on screen, another animated monster ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... example, just move its location up in memory to close the ... , a 5K sword, an extra sprite on screen, another animated monster ... . Eg, if you wind up with one byte for a character on ... to. The rest of the byte could be used as initial ...Official CSSCGC 2010 Competition ThreadDear Wossers, As 'loser' of the 2009 competition, I am now obliged to host the 2010 competition. I have created a site which will provide a hub for …
... br />
The object table is a table of collectible things and ... across two bytes, 256 bytes apart
in the table, then the ... decrement it by incrementing the byte that holds the total count ... pokes both the (location) object table and the room layout
Platformer BAS file?Does anyone have an example of a platformer in BASIC? Specifically one that uses drawn sprites, etc.
... . then going to the token table and double clicking the UDG ... "Token Table" graphics.[/QUOTE]
It does. The UDG/Sprite editor ... , numbers and symbols which make up a total of 96 graphics ... need to use the Token Table to enter UDGs - just hold ...Platformer BAS file?Does anyone have an example of a platformer in BASIC? Specifically one that uses drawn sprites, etc.
... ;505259]It does. The UDG/Sprite editor also lets you change ... , numbers and symbols which make up a total of 96 graphics ... need to use the Token Table to enter UDGs - just hold ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... hand....
- start up code,
- memory management,
byte per allocated block overhead. The ... . It tries to speed up 16-bit operations by looking ... assembler/linker will produce relocation table and have switches to warn ...Where's it all going?[Rerouted from 'Assembler Intricacies' in Development Forum] [QUOTE=Timmy;506104]I don't think we're in disagreement here. As I've said it's a niche…
... played several recent room-em-up games I picked on Sabre ... them. Not knowing the C sprite libraries (or assembler equivalents) would ... to discover that every last byte was being used to produce ...Help?Hi All, I wonder if anyone has a few minutes to look at this bit of code I'm working on. I'm trying to move to sprites and want to do it with a scr…
... the table
loop call sprite ;moves through the sprite graphic ... point hl at them, high byte first
ld l,( ... ix+0) ;low byte
ld (hl),a ... , is loaded with graphic byte from call goblin
...
inc hl ;next byte along
ld (point ...SpecBAS: Request for comment - SpritesHi all - Having been slaving away at the new SpecBAS release, I've decided to finally bite the bullet and implement a sprite engine. I've got a nice…
... ]
As for the sprite parameters itself, I'd probably ... command to change a sprite's graphics. Perhaps a ... command to change any sprite's data records (x ... the SCREEN command), with 256 colours paletted graphics. It' ... PEEKing and POKEing of up to 2GB in size. ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... boundaries, you can write a sprite routine that just displays the ... an inverted silhouette for every sprite frame. That is ANDed first ... sprites up with the blocky method but with a mask byte for ... each attribute. That lets you make your sprite adopt ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... not the usual 256 x 8 table though, it's 256 x 16 ... right halves of each shifted byte.
Unfortunately, since the ...Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... remain absolutely the same: 64 byte fetches per raster line.
sprite-drawing routines to get rid ... in many cases. And the sprite-drawing routines become faster and ...
To sum it up: spectrum hardware (as well as ...Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... of IY-indexing is only 256 bytes. Why is that important ... it is now using a table of screen addresses pointed at ... /> [/code]
No table:
[code]
(
sprite rotation, movement overhead etc that ...Smooth (vertical) scrolling on ZX SpectrumI was just thinking about this. You know, you have systems like Atari 2600 or Sega SG-1000 that have no hardware scroll, but they have games that sti…
... -write the pixels that make up every tile. It'd be ... . You defined a set of 256 characters and a separate colour ... - that's 768 bytes. Each byte tells the computer which character ... the 8 bytes that make up a character, and all copies ...Flip Screen vs ScrollingWhich do you prefer? I've always liked flip screen games but I had a C64(spit) owning friend who hated them with a passion.
... fetch the graphic data one byte at a time, then shift ... you have the scenery made up of a small number of ... if it was one huge sprite, which is very time-consuming ...
